Carburetor attachment



.F. MOORE AND A. GRAY.

CARBURETOR ATTACHMENT.

APPLICATION FILED JAN. 24, I921.

1,42 1, 530, Patented July 4, 1922.

9 T 93 I I F 5 7.5 i

C G 7/ LL) INVENTORS.

A A TTORNEY.

' FRANK MOORE Arrn ALEXANDER GRAY, or TORONTO, ONTARIQ, CAN

Application filed January 24, 1921.

I I T all whom it may concern:

Be it known that we, FRANK MOORE and ALEXANDER GRAY, both subjects of the King of Great Britain, and both residing in the city of Toronto; county of York, Province of Ontario, Canada, have jointly invented l of a. carburetor with the engine intake pipecertain new and useful Improvements in Carburetor Attachments, of which the following is a specification.

' Ourinvention relates to improvements in carburetor attachments of. that type which performs the function of agitating and mixing the charge of explosive mixture and air as it pames from the carburetor into and through the manifold, and thejobject of, the

invention is to more thoroughly agitate and I mix the air and the charge of explosive mixture by preventing the occurrence of any unoccupied passage ways straight through the attachment through current of.non-agitated air and explosive mixture can even momentarily flow. Another object of the invention isto provide an improved means for mounting the attachment in place.

Fig. 1 is' a fragmentary elevational view or manifoldshown in section, and showing our improved attachment, and attaching. means therefor, mounted in place. Fig. 2 is a plan view of the preferred form of Sn porting means for the attachment, in the form of a metal gasket, and Fig. 3 isa plan View of an alternative form of the attach-- ment.

In the drawings, like encerefer to the same arts.

It is well known in t e prior art that carburetor attachments comprising a plurality of vanes have'been mounted on a common spindle and located within the manifold lor engine intake pipe.- F'requently twodistinct sets of vanes are cash provided with a hub, andthe angular disposition of these vanes to their respective hubs is such that the rotary mixing devices are caused to rotate in opposite directions by the force of the fluid drawn through the manifold or intake pipe. From experience we'have found it frequently occurs that a clear unrestricted passageway characters of referlongitudinally of the manifold or intake Specification of Letters Patent.

which a stream or' which the the manifold or intake CARBURETOR ATTACHMENT.

Patented July 4, 1922. Serial No. 439,359.

agitated air and explosive mixture has been taken into the cylinder.

In putting our invention into practice we employ two or more rotary mixing devices whlch positively and definitely rotate at different speeds, either in th poslte directions and thereby prevent, even momentarily any said unrestricted assageway between the rotary mixing devlceslongitudlnally of the manifold or intake pipe.

e obtain the differential in rotation in venous ways; Our preferred manner of reaching this result is to dispose the vanes of the rotary mixing devices at different angles to the axis of-rotation of the device, and another way is to increase the area of the vanes in one rotary mixing device and decrease the area of the vanes in the 'companp selves to using the same.

1s any suitable type of carburetor from pipe B leads. vided with a. flange C. D is the flange of pipe E. Between the flanges C and D are placed the slotted ends F of the gasket G, and these parts are secured in place by any suitable means such as bolts H. y reason of the slots I the gasket G straddles the bolts H.

k This gasket is provided with the central opening 2 through which the explosive mixture passes in the usual way, and form ng preferably an integral part of said gasket and bridging the openlng 2 and vertically positioned thereabove, is a bridge 3. Mounted in the central opening 4 formed 1n said bridge is a spindle 5 on which is mounted the hubs 6 and 7, which are preferably held in spaced relationship in respect to each other and in respect to. the bridge 3 by the rings 8. Carried by the hubs 6 and 7 are a plurality of vanes 9. The vanes of the hub.

6 occupy substantially the same angular position to the spindle 5, and the v nes, of

e same or in op;,.

This pipe is prothe hub 7 occupy a common angular position'in respect of the spindle but different to that of the vanes of the hub 6. The result is that the two rotary mixing devices while they will rotate in the same direction will essentially and at all times rotate at dif ferent speeds. i

10 is the head of the spindle 5 and '11 is the nut screwing'on the lower end thereof and against the underside of the bridge 3, While it forms no part of our invention,

itwill be understood that the most improved construction for reducing friction will be used in all forms of our device.

In Fig. 3 we show two rotary mixing devices 12. and 13 mounted to rotate on the spindle 5'. One of these mixing devices has four vanes or blades, and the other has three, and they are supposed to be placed at the same angular position to the spindle 5'. The area of the blades 14: of the rotary mixing device 12 is greater than the 'area of the blades 15 of the rotary' mixing device-13.

. 1 There are f vanes r blades 14, and threevanes or blades 15 in the example just set forth. Naturally the speed of rotation of themixilildevice' 12 will be "essentially and i always gre ter than that of the mixing device 13. ince the mixing device 12 will preferably be the one nearestthe carburetor certain vanes thereof have been broken away and shown in dotted position in 7 Fig. 3.

While we have illustrated and described our mixing device as preferably used connection with internal combustion engines it must be understood thatwe do not confine ourselves to this field of use for'our invenhave the desired clearance therewith, and

to be actuated by a common current of flowing fluid to essentially'revolve at difierent rates of speed.

2. In combination an intake pipe for internal combustion engines, and a rotary mixing device comprising two rotary devices of substantially the same diameter,- adapted to be mounted in said pipe and tohave the desired clearance therewith, and

to be actuated bya common current of flowing fluid to essentially revolve at different rates of speed, each consisting of a'hub; a 1

common spindle on which said hubs rotate, and a set of vanes carried by each of the said hubs, asset forth and for the, purpose specified.

, FR-A'NK MOORE.

ALEXANDER GRAY. 

